Finding the Fourth Proportional to 239.24, 330.18 and 135.76
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Solution
The fourth proportional to 239.24, 330.18 and 135.76 is: 187.37
Step by Step Solution
- Step 1: Write the proportion equation
239.24 : 330.18 = 135.76 : x - Step 2: Convert to fraction form
239.24/330.18 = 135.76/x - Step 3: Cross multiply
239.24x = 330.18 × 135.76 - Step 4: Simplify right side
239.24x = 44,825.24 - Step 5: Solve for x
x = 44,825.24/239.24 - Step 6: Final answer
x = 187.37
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.